Safety razor



March 27, @951 G, RAUGLAS 2,546,495

SAFETY RAZOR Filed Dec. 29, 1945 Patented Mar. 27, 1951 UNITED STATESPATENT OFFICE SAFETY RAZOR Gerard Rauglas, Chicago, Ill. v ApplicationDecember 29, 1945, seria1 No. 637,893

8 Claims.

IMy invention relates to razor blades and holders. A

Oneof the objects of my invention is to provide an improved safety razorin which the blade can be conveniently, quickly, accurately and securelyattached to the holder and detached therefrom.

A further object is to provide such a razor in which the blade isaccurately positioned and pressed snugly against a backstop.

A further object is to provide a safety razor having alongitudinally-slotted blade to enable the rearportion of the blade tobe clamped snugly on the holder and the front portion of the blade tovibrate independently of the rear portion so that its action will besimilar to that of the front edge portion of a high grade hollow groundstraight razor.

Further objects andadvantages of the invention will be apparent from thedescription and claims.

In the drawings, in which one form of my invention is shown,

Figure 1 is an elevational side view of a razor blade holder and blade;

Fig. 2 is a section substantially on the line 2-2 of Fig. 3 showing theblade in clamped position;

Fig. 3 is a front elevational view of the holder and blade;

Fig. 4 is a rear elevational view;

Fig. 5 is a section of the upper part of the holder and bladesubstantially on the line 2--2 of Fig. 3 but showing the blade released;

Fig. 6 is a perspective view of the rockable clamping and positioningmember, and

Fig. 7 is a plan view of the blade.

The construction shown comprises a metal handle I having a central axialrecess 2, a thin somewhat flexible razor blade 3 having alongitudinally-extending slot 4 therein and a holder having a tubularextension 5 screwed into the handle and having mounted thereon arockable member 6 having a rock yoke l extending through the opening 4in the blade, a rockshaft 8 on which the rock yoke 'I is mounted, a rockarm 9 eX- tending through a loop in the spring-pressed plunger I, whichis slidable in the tubular extension 5, and a thumbpiece II secured tothe rockshaft for rocking it to cause the rock yoke to release the blade3 for replacement.

The longitudinal slot in the blade is provided with two notches I2, oneat each end thereof, to receive the arms I3 of the yoke member and toprovide a shelf -like extension between the notches I4 underlying thecrossbar I5 so that the crossbar serves as a blocking means to assist inpre- 2 venting the blade from becoming detached from the holder.

A coil compression spring I6 surrounds the plunger IIJ bearing at oneend against a washer Il on the plunger and at its other end against theend of the threaded extension 5 of the holder. This spring-pressedplunger tends to rotate the rockshaft S in a counterclockwise direction,as viewed in Figs. 1, 2 and 5. This will cause the ends of the arms I3of the yoke to bear against the edges of the notches I2 in the blade,tending to force the blade to the rear and to pull it inwardly to clampit against the holder. The movement of the blade to the rear is limitedby engagement of the rear edge of the blade with a pair of stop lugs I 8on the holder. The blade is notched at IS for the reception of theselugs I3. The edges of these notches taper uniformly inwardly andrearwardly, as shown in Figs. 4 and '7, to insure centering of the bladelaterally when it is pressed to its rear position. The edges of thenotches I2 in the blade taper uniformly inwardly and forwardly, as shownin Fig. 7, so that as the arms of the yoke engage these flaring orsloping edges they also will tend to center the blade laterally. Theinner edges of the arms of the yoke diverge rearwardly at those portionswhich engage the edges of the notches, thus further tending to centerthe blade laterally preliminary to the na1 centering elected by the lugsI8 and notches I9.

In general, the crossbar I 5 does not quite touch the blade when theblade has been pushed to its extreme rear position, but this crossbarwill serve to prevent any undue deflection of the blade and assists theuser in placing the blade in the holder. If desired, the crossbar mayinclude an elongated roller for rolling engagement with the skin as therazor is drawn along. This crossbar also serves to give the proper angleof the blade with respect to the skin. When using the razor, the usercan feel the crossbar I5 engaging his face, which will let him know thatthe holder is at the proper angle.

In placing the blade on the holder, the user, placing the holder in onehand, will press downwardly on the thumbpiece II to bring the yoke 'I tothe position shown in Fig. 5. With the other hand, he will hold theblade 3 between the thumb and forenger, bringing the slot 4 in the bladeinto registration with the crossbar and then slip the blade down overthe crossbar and release the thumbpiece to allow the arms I3 to engagethe edges of the notches I2 and press the blade rearwardly to bring itsnugly against the backstops front edge of the base 29.

3 i8 and to clamp the rear portion of the blade snugly against theholder.

Since the clamping bar l engages that part of the blade in the rear ofthe slot 4, it enables that part of the blade in front of the slot tovibrate independently of the rear portion of the blade so that itsaction will be similar to that of a high grade hollow ground straightrazor.

In practice, I have found that good results are obtained by makingv thatportion of the blade lying in front of the slot about to 1A" wide.

The blade may be cleaned easily without removing it from the holder byholding it under a faucet so that the water will enter the chamberformed by the base 2Q and cheeks 2l of the holder and the lower side ofthe blade 3. The holder should be held under the faucet in such a waythat the water enters from the open rear side of this chamber and isforced downwardly between the front edge of the blade 3 and the Thischamber forms, in effect, a chamber for collecting lather, etc., whileshaving, and a funnel for directing the water from the faucet againstthe blade when itis being cleaned.

Further modic'ations will be apparent to those skilled 'in the art andit is desired, therefore, that the invention be limited only by thescope of the appended claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

l. The combination with a razor blade having a single cutting edge of ablade holder having a blade engaging seat, said blade having rearwardlyfacing abutment-engaging shoulder means for limiting the rearwardmovement of the blade on the blade seat, and having abutment-engagingshoulder means for limiting the endwise movement of the, blade on theblade seat, the end edges of the blade extending forwardly from theouter ends of the rearwardly facing shoulder` means to the cutting edgeof the blade, said blade having a long narrow slot therethroughextending longitudinally of the blade and terminating adjacent the saidend edges to provide two relatively narrow arms connecting the portionof the blade in front of the slot and the portion of the blade to therear of the slot, said holder having a laterally elongated rockablepusher arm extending beyond Said seat into said slot, the rear edge ofsaid slot having laterally extending forwardly facing arm-engageableshoulder means whereby the blade may be pressed rearwardly to force saidrearwardly facing shoulder means rearwardly, and spring means urgingsaid roei; arm rearwardly.

2. The combination with a razor blade having a single cutting edge of ablade holder having a blade engaging seat, said blade having rearwardlyfacing abutment-engaging shoulder means for limiting the rearwardmovement of the blade on the blade seat, and having abutment-engagingshoulder means for limiting the endwise movementV of the blade on theblade seat, kthe end edges of the blade extending forwardly from theouter ends of the rearwardly facing shoulder means to the cutting edgeof the blade, said blade having` a long narrow slot therethroughextending longitudinally of the blade and terminating adjacent the saidend edges to provide two relatively narrow arms connecting' the portionof the blade in front of the slot and the portion of the blade to therear of the slot, said holder having a laterally elongatedrockablepusher arm extending beyond said seat 'lli into said slot, therear edge of said slot having laterally extending forwardly facingarmengageable shoulder means whereby the blade may be pressed rearwardlyto force said rearwardly facing shoulder means rearwardly, said armhaving a manually operable member rockable with said arm extendingforwardly from the axis of said rock arm to a position in front of the.holder.`

3.' The combination with' a razor. blade having a single cutting edge ofa blade holder having al blade engaging seat, said blade and holderhaving interengageable means for limiting the rearward movement of theblade on the blade seat and for limiting the endwise movement of theblade on the blade seat, said blade having an opening therethrough, saidholder having a pusher arm having a free end extending beyond saidseatinto said opening, and spring means for forcing said arm rearwardly tobring said inter- -engageabl'e rearward movement limiting means intoengagement.

4. The combination with a razor blade having a singlecutting edge of ablade holder having a blade engaging seat, said blade and holderhaving'interengageable means for limiting the rearwardfmovement of the.blade on the bladeV seat and forlimiting the endwise movement of theblade on the blade seat, said blade having an opening therethrough,.said holder having a pusher rock arm havinga free end extending beyondsaid seat into said opening, and spring means Yfor forcing said armrearwardly, to bring said interengageable rearward movement limiting.means into engagement, said rock arm having fa manually operable memberrockable. with said arm extending forwardly from the axis of saidflr'ockarm to a positionin front of the holder;

5. For use with a razor blade having a single cutting edge, a bladeholder having an outwardly facing blade engaging seat, forwardly `facingblade engaging shoulder means for ll-imting the rearward movement of theblade on the blade seat, and blade-engaging shoulder meansy for limitingthe endwise movement of the blad'eon the blade seat, said holder havinga pusher arm having a free end extending beyond said' seat into anopening in the blade whereby theblade may be pressedrearwardly toy forceit into; engagement with said forwardly facing shoulder means, andspring means `urging said free end. rearwardly.

6;.For use with a razorV blade having a single cutting edge, abladeholder. having ran outwardly facing blade engaging seat, forwardlyfacing blade engaging shoulder means for limiting the rearward movementof. the blade on the blade seat, and' blade-engaging shoulder means forlimiting the endwise movement of the blade on the blade seat, saidholder having apusher arm having av free end extending. beyondV saidseat into an opening inthe bl'ad'e whereby the blad-e may. be pressed.-`rearwardly to Iforce it into engagementwith said forwardly facingshoulder means,Y and. spring means' urgingy said` free endv rearwardly,said arm being .rockablymountedv on` said holder andy havingI amanually4 operablei member rockable with said arm extending fer-- wardlyfrom the axi'sofisaidroch.arm to a posi'- tion in front of' the holder.

7.; The combination. with a razor blade, of a blade holder mounted on.af handle andi-fixed with respect thereto, said holder having anoutwardly facing blade'seat along which said` blade may slide andYVhaving positioning means for limiting the rearward movement of the bladein the holdier, and spring urged rockable means for pressing said bladerearwardly against said positioning means and clamping the bladeinwardly on the seat, said blade being apertured to provide for thepassage therethrough of said roolzable means and to provide an edgeengageable by rooku able means in its rocking and clamping action.

8. The combination with a, razor blade, of a blade holder mounted on ahandle ixed with respect thereto, said holder having an outwardly facingblade seat along which said blade may slide and having positioning meansfor limiting the rearward movement of the blade in the holder andpositioning it laterally, and spring urged rockable means for pressingsaid blade rearwardly against said positioning means and clamping theblade inwardly on the seat, said blade being apertured to provide forthe passage therethrough of said rockable means and to pro- Vide an edgeengageable by said rockable means in its rocking and clamping action.

- GERARD RAUGLAS.

REFERENCES @IEEE The following references are of record in the iile ofthis patent:

UNITED STATES PATENTS Number Narne Date 969,724 Pratt Sept. 6, 19101,257,079 Hartman Feb. 19, 1918 1,718,008 Segal June 18, 1920 1,770,504Dallowitz July 15, 1930 1,848,078 Janssen Mar. l, 1932 1,856,305 WitterMay 3, 1932 1,891,627 Muros Dee, 20, 1932 2,125,502 I-Ioltzman Aug. 2,1938

